Automobile jsake band



May 15, 1928.

R 16,965 F. H. SMITH ET AL AUTOMOBILE BRAKE BAN D Original Filed June12, 1919 2 h t t '1 (lumuhw FRANK H. 5M|TH THOMAS A SINDELAR ilflmucn;

May 15,1928.

FL H. SMITH ET AL AUTOMOBILE BRAKE BAND Original Filed June 12. 1919 2sh t -sh t 2 (inventor FRANK H. SMFI'H THoMAs A- SINDELAR Reissued May15 1928.

UNITED STATES PATENT, OFFICE.

rmmx B. SMITH AND enemas a. mani or CLEVELAND, OHIO, ASSIGNOBB, BY MESNEASSIGNMENTS, 'ro nnnmx BRAKE COMPANY, or cmcaeo, rumors, a

CORPORATION OF ILLINOIS.

anrouonm BRAKE 1mm).

Original in. 1,526,098rdated February 10, 1925, swam. 303,586, filedJune 12, 1919. Application 101- reissue filed July 1, 1925. Serial No.40,945. i

This invention relates enerally to brakes for automobile wheels andmoreparticularly to the construction in the internal brake band. Theobject is to provide a simple and inex ensive construction of internalbrake band and with this object in view the invention consists in thenovel features of construction hereinafter fully. described and setforthwin the appended claims.

In the drawings forming a part of this specification, Figure 1 is adiagrammatic view showing the mode of application of our invention;Figure 2 is a detail view of one section of the brake band removed fromthe drum; Figure 3 is a detail sectional view on the line 3-+3 of Figure2; Figure 4 a sectional view on the line 4.-4 of Figure 2; Figure 5 is aface view of one end and Figure 6 is a plan view of a blank for formingthe entire section from a single piece of metal; and Figures 7 8, 8 and8" are detail views illustrating the various steps of making theone-piece section; Figure 9 shows a modified form of construction;Figure 10 is a section on the line 10- 10 of Figure 9: and Figure 11 isa section on the line 11-11 of Figure 9; Figure 12is a face view of oneend; Figure 13 shows a further modification; Figure 14 is a face view ofone end -of the same; and Figure 15 is a section on the line 15--15 ofFigure 13.

In carrying out ourinvention-we employ a strip of sheet metal which isrolled to provide a double semi-circular band A having inwardlyprojecting parallel. flanges B and inserted between said parallelflanges and secured thereto by welding, brazing or otherwise is asemi-circular plate. C which being in a plane perpendicular to thesurface of the band serves as a. strengthening means for the rolledsheet metal band. The sheet metal being rolled back upon itself as shownand thereby providing a band of double thickness will have considerablerigidity and this coupled with the semi-circular strip or plate C willprovide a brake band sector of sufli rient strength to withstand all thestrains placed thereon. To one end of the sector thus formed is attachedthe usual or any preferred type of fitting D and at the oppo site and ofthe sector there is arranged a shoe E, this being preferably channelshaped and pressed from sheet metal and welded to the end of the sectorcomposed of the band and plate and the end of this shoe is cut. away inthe form of a semi-circle as shown at F in order to engage the cam G foractuating the brake band sectors. sheet metal hook H is welded to theplate portion of the sector as shown and adapted to receive the spring Iwhich normally holds the brake band out of engagement. The fitting isconnected to the end of the sector by rivets or in any other suitablemanner. A brake band constructed as herein shown and described isexceedingly strong, durable, easily fabricated. and in operationpreferable to a cast or forged band.

In Figures 6, 7, 8 and 8 and 8 we have shown a slightly modified form ofband in which the cylindrical band portion and the inwardly-projectingreinforcing rib are all formed from a single piece of sheet metal, theplate being first bent into channel form. then curved to produce thesemi-circleland then transformed by the proper pressingloperations intoa T-shaped band comprising in a single piece the semi-circular cvlindrical or band portion and the inwardlv proj'ectingrib or reenforcingportion. The fitting and the shoe andlilrewise the book will beconnectcdjas previously described.

In the construction shown in Figure 9,

the band K is made of pressed metal as previously described and has theplate K connected thereto as previously set forth. The end of the platehowever to which the fitting D is attached is split and spread as shownat K in order to provide a broad point of attachmentfor the fitting. Theshoe E is constructed with the side flanges E and ears E which areconnected to the plate by rivets E. The hook H is provided by cutting anL-shaped notch in the plate member.

In the construction illustrated in Figure 13. the band L is T-shapedin-cross section. this being formed from :1 rolled section and giventheproper semi-circular. shape and provided with a suitable facing L.The fitting D is riveted to one end'as heretofore described, and a shoeM connected to the opposite end is pressed from sheet metal andcomprises fiat portion M having the flanges M and the integral braceears M welded or otherwise secured to the band and it will of rangedbetween said flanges and rigidly part and radial flanges, and a radiasemi-circular connected thereto, and a' sheet metal member rigidlyconnected to one end of said band.

2. A sheetmetal brake band having a plate rigidly connected there= toand providing a T-shaped brake member, one. end of said plate beingexpanded, a fitting secured to said expanded end, a shoe rigidlyconnected to the opposite end of the brake member, said shoe comprisinga flanged flat portion and integral braced ears, said ears and flatportions being welded to the end of the brake member.

3. A brake shoe comprising an angleshaped pressed metal member includinga plurality of separably-formed stampings permanently secured togetherand a. separately formed thrust member secured to one endthereof.

4. A brake shoe comprising two angular sections-secured back to bac anda reenforcing member secured across the free faces of said angularsections.

5. A brake shoe comprising two substantially semi-circular members ofL-shaped section secured back to back, a'reenforcing strip conformingwith and secured to the free faces thereof, 'and friction materialsecured to said reenforcing strip. 6. A brake shoe comprising twostamped metal arts of L-shaped sect-ion secured back to bac the freefaces thereof conforming in shape to a c lindrical surface, and areenforcing member secured to and extending over said cylindricalsurface.

7. A brake shoe comprising an angleshaped pressed metal member includinga substantially cylindrical lining-supporting contact member securedacross one end thereof.

8. A'brake shoe comprising two angular L-shaped sections arranged backto back and a reenforcing lining-supporting part extending across theouter faces of said an gular. sections.

9. A brake shoe comprising two substantially semi-circular parts ofL-shaped sec tion arranged back to back, a reenforcing part conformingwith and secured to the outer faces thereof, and friction materialsecured to said reenforcing part. c

10 A brake shoe comprising two stamped metal parts of L-shaped sectionarranged back to back, the outer faces thereof conforming in shape to acylindrical surface,

and a reenforcing member extending over I dial flange and a cylindricalflange, the two cylindrical flanges extending oppositely outward, and aseparate piece secured to said radial flanges and with them forming a.central stiffening web.

12. A brake shoe having pressed metal parts each of which includes acentral ra dial flange and a cylindrical flange, the two cylindricalflanges extendingoppositely outward, a separate piece secured to saidradial flanges and Withthem forming a central. stifi'ening web, and acontact member extending across the central Web and transuniting thebrake-applying thrust directly thereto.

13. A brake shoe comprising a curved portion having inwardly extendingparallel flanges, and a curved strip secured between said flanges. I

14. A brake shoe of pressed metal including two connected parts, eachincludin a radial stiffening" flange and a cylindrical flange integralwith each other. i

15. A brakeshoeof pressed metal ineluding two connected parts, eachincluding a central radial stitfer'iingflange and ano1itwardly-extending cylindrical flange intcgral with each other.

l 16. A brakeshoeof metal pressed to proride a. cylindricallining-supported part and two radially-extendin stiffening flanges.

17} A brake shoe 0 metal pressed to pro- \ltlC a cylindricallining-supporting part and two radially-extending stifl'enin flangesspaced inwardly from the edges of t e liningsupporting part. I

18. A brake shoe comprising a pressedmetal body with separately-formedmeans at one end for pivotally anchoring it and with separately formedmeans at the other end for operative engagement with a. brake-applyingdevice.

19. A brake shoe composed at least in part of pressed metal andincluding an outer cylindrically-curving portion forming the frictionface, and reinforcing portions continued toward each other from oppositesides of the friction face and which are secured together in a jointrunning lengthwise of the shoe.

20. A pressed metal brake shoe havin parts arranged to reinforce eachother an comprising a plurality of separately-formed stampingspermanently secured together.

'21. A brake sho'e comprising two separatel -formed parts, one being acylindrical ban forming the friction face of the shoe and the otherbeing a flat plate forming a stiffening web, said plate being attachedat its outer edge to the inner face of said band.

22. A brake shoe comprising two sepa rately'formed parts, one being acylindrical band forming the friction face-of the shoe and the otherbeing a flat plate forming a stiffening web, said plate being welded atits outer edge to the inner face of said band.

23. A brake shoe comprising a cylindrical band and a separately-formedstifl'enin member secured to the inner face of sai band substantially onits center line.

'24. A brake shoe comprising a cylindrical hand and a separately-formedstifiening membcn secured to the inner face of said band, together witha separately-formed anchor fitting attached to one end of said havingradial ortions secured together to stiffen the shoe cylindrical portionson opposite sides of said radial portions.

29. A brake shoecomprising a doublethickness cylindrical band formed ofa steel stamping'and having a stiffening rib between 40 its edges.

30. A brake shoe comprising a. stifl'ening 'web member and a cylindricallining carrying member having means engaging at least one side of theweb member and permanently secured thereto.

31. A brake shoe comprising a pressed sheet-metal body structureincluding a lining-supporting cylindrical portion and two etween itsedges and having 35 stiffening member.

25. A brake shoe comprising a cylindrical band and a separately-formedstiffening member securcd to the inner face of sai band, saidseparately-formed web having means at one end for engagement with anreinforcing portions which are integrally 5 connected to the oppositesides of the cylindrical portion and which are secured together toreinforce each other.

32. A brake shoe formed at least in part of pressed sheet metal andhaving a cylinanchor and having at its other end means for engagementwith a brake-applying device.

26. A brake shoe comprising two parts of L-shaped section arranged. backto back, in combination with a separately-formed stiffening web membersecured between said parts.

i 27. A brake shoe comprising two parts of L-shaped section arrangedback to back.

28. A brake shoe comprising two parts drical lining-carrying portion andtwo stifiening portions, each of which is integral with one side of thelining-carrying portion, and" which are connected by a joint extend-.

ing lengthwise of. the shoe alongthe center line of the shoe.

'In testlmony whereof we signed our names.

FRANK H. SMITH. THOMAS 'A. SINDELAR.

have hereunto

